11072273657 has 4 divisors (see below), whose sum is σ = 11073547380. Its totient is φ = 11070999936.

The previous prime is 11072273609. The next prime is 11072273659. The reversal of 11072273657 is 75637227011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9072753001 + 1999520656 = 95251^2 + 44716^2 .

It is a cyclic number.

It is not a de Polignac number, because 11072273657 - 2³⁰ = 9998531833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11072273659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623732 + ... + 641237.

It is an arithmetic number, because the mean of its divisors is an integer number (2768386845).

Almost surely, 2^11072273657 is an apocalyptic number.

It is an amenable number.

11072273657 is a deficient number, since it is larger than the sum of its proper divisors (1273723).

11072273657 is an equidigital number, since it uses as much as digits as its factorization.

11072273657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273722.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 11072273657 in words is "eleven billion, seventy-two million, two hundred seventy-three thousand, six hundred fifty-seven".